Belt-controller for dynamos



(No ModeL) W. A. FOOTE. BELT CONTROLLER FOR DYNAMOS.

No. 454,467. Patented June 23,1891.

UNITED STATES PATENT OFFICE.

IVILLIAM A. FOOTE, OF BATTLE CREEK, MICHIGAN.

BELT-CONTROLLER FOR DYNAMOS.

SPECIFICATION forming part of Letters Patent No. 454,467, dated June 23,1891.

Application filed July 31,1890. Serial No. 360,532. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM A. FOOTE, a citizen of the United States,residing at Battle Creek, in the county of Calhoun and State ofMichigan, have invented certain new and useful Improvements inBelt-Controllers for Dy namo-Machines, of which the following is aspecification, reference being had therein to the accompanying drawings.

This invention relates to new and useful improvements inbelt-controllers for dynamomachincs; and the invention consists in thepeculiar construction of the supporting-frame for a dynamo, whereby thedynamo may be moved to slacken the drive-belt or to tight-en the same,and, further, in the peculiar construction, arrangement, and combinationof the various parts, all as more fully hereinafter described.

In the accompanying drawings, Figure 1 is a side elevation showing mydevice applied to dynamos. Fig. 2 is an enlarged side elevation of oneof the frames detached. Fig. 3 is a vertical cross-section on line a; 00of Fig. 4 of one of the frames, and Fig. l is a vertical centrallongitudinal section of one of the frames on line 3 y of Fig.

A represents an engine of any suitable construction.

Bis the counter-shaft, to which power is transmitted from the engine bymeans of the belt 0. This I preferably arrange in a suitable well D foreconomy of room and to place the dynamos above the counter-shaft.

E is the driven pulley, and E is the driving-pulley, over which run thebelts F F, one connected to each of the dynamos G G,which are arrangedat the top of the well. Each dynamo is supported upon. a frame ofthcfollowing construction:

II is the base. I is the base-plate, secured upon the base in anysuitable manner and having its upper surface J inclined and providedwith suitable bearings J, in which engage the lower edges of the frameK, which is oppositelyinclined upon its lower edge and carries upon itstop the dynamo G. The part K of the frame is adapted to slide up anddown the inclined surface J of the base-plate I.

L is the hydraulic jack, rigidly secured in the base-plate I at acorresponding angle to the incline J upon said plate and having thepiston-rod M secured to the plate K.

O is a suitable supply-pipe connecting with the hydraulic jack, and alsoconnected with any suitable source of power, such as apump. P is a valvecontrolling said pipe.

Q is an outlet-pipe provided with a controlling-valve Q. v

The parts being thus constructed, they are intended to operate asfollows: Motion being transmitted to the counter-shaft B from theengine, the belt being slack in order to give it the proper tension todrive the dynamos, the dynamos being at the lower end of the incline J,as shown in Fig. 2, the valve Q is closed and the valve P is opened.Power be ing had from the pump, the water entering through the pipe 0will move the piston M outwardly, together with its piston-rod M,carrying with it the frame K and the dynamo until the proper tension isbrought upon the belt, when the valve P may be closed and the dynamoheld in this position as long as necessary. As soon as the valve P isclosed the pump may be stopped. If it is desired to slacken the belt, itis done by simply opening the escape-valve Q, which allows the water toescape from the hydraulic jack, when the weight of the dynamo and framewill cause the frame K to slide down the incline J, loosening the belt.As soon as the belt is loosened the valve Q, may be closed again and thedynamo and its frame held in the adjusted position.

The pipe 0 may be connected with an ordinary boiler feed-pump necessaryin such a plant, and as the extra expense of building such dynamo-framesis very small my device may be applied very readily.

What I claim as my invention is- 1. In a belt-controller for dynamos,the combination, with the base having an inclined upper face, of asupporting-frame having its lower side oppositely inclined relative tothe base and adj ustably held thereon, a reciprocating piston connectedwith the supportingframe, and means for reciprocating the piston,substantially as described.

2. In a belt-controller for dynamo-machines, the combination of the basehaving an inclined upper face, an upper frame having an the baseparallel to the incline of its upper face, a piston in said cylinder, arod 011 said piston having its opposite end secured to the upper slidingframe, and means for supplying and exhausting liquid in the cylinderback of the piston, substantially as described.

In testimony whereof I affix my signature in 20 presence of twowitnesses.

7 WILLIAM A. FOOTE. Witnesses:

JAMES WHITTEMQRE, M. B. ODOGHERTY.

